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Maintenance-free lead-acid storage battery and preparation method thereof

A lead-acid battery, maintenance-free technology, applied in the direction of lead-acid batteries, lead-acid battery construction, batteries, etc., can solve the problems of active material falling off, polluting the environment, affecting the normal use of batteries, etc., and achieve the effect of high-heavy load life

Active Publication Date: 2015-12-09
骆驼集团新疆蓄电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional lead-acid batteries mostly use lead-antimony alloy to make the grid, which can increase the strength of the grid and is easy to form when the grid is cast, but the alloy has the following disadvantages: (1) lead-antimony alloy is not corrosion-resistant, corrosion The last grid can not play a supporting role, and the active material falls off prematurely, which shortens the battery life; (2) the hydrogen evolution overpotential is low, so that when the battery is raised to 13.2V / single at a lower voltage, a large amount of Decomposition of water causes the electrolyte to dry up. Therefore, when an antimony-containing alloy is used as a grid and the antimony content is relatively high, the battery must be frequently added with water for maintenance during use, so it cannot be made into a maintenance-free battery; (3) The decomposition of water causes a large amount of acid mist , pollute the environment; (4) Antimony-containing grids cause self-discharge due to the migration of antimony during use, which affects the normal use of the battery
According to the JISD5301-2006 standard, the 55D23 battery requires 315 times of heavy load life, and the current industry generally can only reach about 200 times, which is far lower than the above standard

Method used

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  • Maintenance-free lead-acid storage battery and preparation method thereof
  • Maintenance-free lead-acid storage battery and preparation method thereof
  • Maintenance-free lead-acid storage battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Positive lead paste: Mix 0.01kg stannous sulfate, 0.1kg antimony trioxide, 0.02kg polyester fiber (fiber length 3-5mm) in advance, and then add 1kg red lead and 100kg lead powder into the paste machine Stir for 3min, stir evenly; Then add 11kg deionized water and 0.15kg polytetrafluoroethylene emulsion (the weight percent concentration of polytetrafluoroethylene emulsion is 40~70%, polytetrafluoroethylene solid particle size is 1~15nm) carries out wet Mix for 3 minutes and stir evenly; then add 6kg of 1.38g / mL (25°C) dilute sulfuric acid dropwise, and keep stirring. , After the paste is finished, the paste can be used when the temperature drops below 45°C.

[0067] Negative lead paste: Mix 0.05kg of polyester fiber (fiber length 3-5mm), 0.1kg of acetylene black, 0.1kg of barium sulfate, 0.2kg of Norway lignin, and 0.3kg of humic acid in advance, and then mix it with 100kg of lead powder Add it to the paste mixer and stir for 4 minutes, and stir evenly; then add 6kg of ...

Embodiment 2

[0069] Positive lead paste: Mix 0.1kg stannous sulfate, 0.05kg antimony trioxide, and 0.15kg aramid fiber (fiber length: 3-5mm) in advance, and then add them to the paste machine together with 3kg red lead and 100kg lead powder Stir for 5min, stir well; then add 12kg deionized water and 0.02kg polytetrafluoroethylene emulsion (the weight percent concentration of polytetrafluoroethylene emulsion is 40~70%, polytetrafluoroethylene solid particle particle size is 1~15nm) carries out wet Mix for 5 minutes and stir evenly; then drop 7kg of 1.38g / ml (25°C) dilute sulfuric acid and keep stirring. , After the paste is finished, the paste can be used when the temperature drops below 45°C.

[0070] Negative lead paste: Mix 0.1kg of aramid fiber (fiber length: 3-5mm), 0.05kg of acetylene black, 0.8kg of barium sulfate, 0.4kg of Norwegian lignin, and 0.1kg of humic acid in advance, and then mix it with 100kg of lead powder Add it into the paste mixer and stir for 10 minutes, and stir eve...

Embodiment 3

[0072] Positive lead paste: Mix 0.2kg stannous sulfate, 0.15kg antimony trioxide, 0.05kg polyester fiber (fiber length 3-5mm) in advance, and then add 10kg Danhong and 100kg lead powder into the paste machine Stir for 12min, stir evenly; Then add 15kg deionized water and 0.11kg polytetrafluoroethylene emulsion (the weight percent concentration of polytetrafluoroethylene emulsion is 40~70%, polytetrafluoroethylene solid particle particle size is 1~15nm) carries out wet Mix for 5 minutes and stir evenly; then add 12kg of 1.38g / mL (25°C) dilute sulfuric acid dropwise and keep stirring. , After the paste is finished, the paste can be used when the temperature drops below 45°C.

[0073] Negative lead paste: Mix 0.15kg polyester fiber (fiber length 3-5mm), 0.3kg acetylene black, 1.0kg barium sulfate, 0.3kg Norwegian lignin, and 0.05kg humic acid in advance, and then mix it with 100kg lead powder Add it to the paste mixer and stir for 10 minutes, and stir evenly; then add 14kg of de...

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Abstract

The invention particularly relates to a maintenance-free lead-acid storage battery and a preparation method thereof. The lead-acid storage battery is prepared from the following anode lead plaster materials: 100kg of lead powder, 1 to 10kg of red lead, 0.02 to 0.15kg of short fiber, 0.02 to 0.15kg of teflon, 0.01 to 0.2kg of stannous mono-sulphate, 0.01 to 0.2kg of antimonous oxide, 6 to 14 weight percent of deionized water, and 5 to 12 weight percent of dilute sulphuric acid, and the following cathode lead plaster materials: 100kg of lead powder, 0.02 to 0.15kg of short fiber, 0.05 to 0.4kg of acetylene black, 0.1 to 1kg of barium sulfate, 0.05 to 0.4kg of lignin, 0.05 to 0.4kg of humic acid, 6 to 14 weight percent of deionized water, and 5 to 12 weight percent of dilute sulphuric acid. The storage battery provided by the invention has good heavy-load discharge performance.

Description

technical field [0001] The invention belongs to the technical field of lead-acid batteries, and in particular relates to a maintenance-free lead-acid battery and a preparation method thereof. Background technique [0002] The plate is the core component of the lead-acid battery. The performance of the plate directly affects the performance and service life of the battery, and the plate is usually composed of grids and lead paste. The role of the grid is to support, conduct electricity, and distribute current, and it is also a key factor affecting battery life. Traditional lead-acid batteries mostly use lead-antimony alloy to make the grid, which can increase the strength of the grid and is easy to form when the grid is cast, but the alloy has the following disadvantages: (1) lead-antimony alloy is not corrosion-resistant, corrosion The last grid can not play a supporting role, and the active material falls off prematurely, which shortens the battery life; (2) the hydrogen e...

Claims

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Application Information

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IPC IPC(8): H01M10/12H01M4/62
CPCH01M4/62H01M10/12H01M2220/20Y02E60/10Y02P70/50
Inventor 史俊雷张祖波张行祥
Owner 骆驼集团新疆蓄电池有限公司
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